HHdbIV

Harold van der Heijden

Amsterdam, Oktober 2nd 2010

Chess Art

• Composition

• Composers

• Étude

• Theme

• Composition tourney

• Judge

Endgame study

• White wins

• Wit draws

• A unique solution

• Spectacular, surprising

Endgame study tourney

• Judge (“FIDE-arbiter”) evaluates studies

• Which is the best (most beautiful) study?

• However: originality?

Originality

• Anticipation vetting

• Approximately 90.000 endgame studies published

• Collections (cards)

Tattersall (ca. 1910)

John Selman: archive 1940-1970

Alexander Rueb

Other famous collections

• Lamare (France): ca. 1900-1935: approximately 10.000 cards

• Kasparyan (Armenia): ca. 1960-1990: approximately 30.000 cards

Anticipation service

• John Richard Harman (England): 1905-1986

• Over 40.000 studies

• Ordered by themes

František Macek (Czech Republic): 50.000 cards

Computer file

• Harold van der Heijden

• Since late 1980’s

• HHdbI (1991): 23.358

• HHdbII (2000): 58.801

• HHdbIII (2005): 67.691

• HHdbIV (2010): 76.132

Endgame study database

• Original sources (magazines)

• Secondary sources (books)

• Card collections (e.g. Selman, De Feijter, Macek, but also: Lamare)

• Co-operation with foreign experts

Use of database

• Anticipation service for tourney judges

• Source for articles and books

• Tool for composers (idea already known?)

• O.t.b. play: training of calculation ability and endgame tactics

Statistics

Composer # studiesErnest Pogosyants 1954Henri Rinck 1718Alexey Troitzky 1620Ladislav Prokeš 1194David Gurgenidze 929Michael Bent 860Bernard Horwitz 761Filip Bondarenko 683Genrikh Kasparyan 656Aleksandr Kuznetsov 646Vitali Kovalenko 574Julien Vandiest 559Tigran Gorgiev 535Iuri Akobia 528Jindřich Fritz 517Joseph Kling 515

Statistics

0

200

400

600

800

1000

1200

1400

1600

1800

80

0

16

34

18

08

18

41

18

61

18

81

19

01

19

21

19

41

19

61

19

81

20

01

Aan

tal s

tud

ies

HHdbIV historical

Kling & Horwitz 1851

WW I WWII

End of Soviet Union

CQL

• Chess Query Language– Lewis Stiller & Gady Costeff

– Developed for HHdbIII!

– Script-based

– Very powerful

– Freeware

– (Implemented in Chess Assistant)

Dobrescu manoeuvre

Dobrescu manoeuvre: pos1

Dobrescu manoeuvre

Dobrescu manoeuvre

Dobrescu manoeuvre: pos2

Dobrescu manoeuvre: pos3

Dobrescu manoeuvre

Dobrescu manoeuvre: pos2

Dobrescu manoeuvre: pos1

CQL

Korolkov!

Korolkov!

Korolkov!

Korolkov!

Korolkov!

CQL

www.hhdbiv.nl

First copies

Yochanan Afek

224 studies

Jan Timman

183 studies

www.hhdbiv.nl